Have a query? Ask a Tutor!!

Access to best educators and exclusive paper discussions

Offsite Campus Turito Championship

Can’t find what you’re looking for?

Our tutors are from top schools around the world, and they are waiting for you 24/7, anytime, anywhere.

Homework- One to One Solutions
Understand concepts to solve better
Get your doubts solved instantly

Mathematics

Grade-11

Easy

Question

Solve the quadratic equation below using the Square Root Method.
$negative 2 x squared plus 15 equals x squared minus 12$

5, -5
6, -6
4, -4
3, -3

The correct answer is: 3, -3

$negative 2 x squared plus 15 equals x squared minus 12$
$negative 2 x squared plus 15 minus 15 equals x squared minus 12 minus 15$
$negative 2 x squared equals x squared minus 27$
$negative 2 x squared minus x squared equals x squared minus x squared minus 27$
$negative 3 x squared equals negative 27$
$fraction numerator negative up diagonal strike 3 x squared over denominator negative up diagonal strike 3 end fraction equals fraction numerator negative 27 over denominator negative 3 end fraction$
$x squared equals 9$
$square root of x squared end root equals plus-or-minus square root of 9$
$x equals plus-or-minus 3$
$x equals 3 text or end text x equals negative 3$
The solutions to this quadratic formula are x = 3 and x = -3

Related Questions to study

For which of the following zero product property can be applicable?

For which of the following zero product property can be applicable?

MathematicsGrade-11

What are the solutions to a an equation that factors to (2x - 9) (3x - 9)?

What are the solutions to a an equation that factors to (2x - 9) (3x - 9)?

MathematicsGrade-11

Solve (x + 8)² = 0

Solve (x + 8)² = 0

MathematicsGrade-11

parallel

The graph g(x) is the translation of f(x) = x². Identify the function g(x) of the graph given below.

The graph g(x) is the translation of f(x) = x². Identify the function g(x) of the graph given below.

MathematicsGrade-11

Find the equation whose factors are (x + 4), and (3x - 5).

Find the equation whose factors are (x + 4), and (3x - 5).

MathematicsGrade-11

$3 x squared plus 7 equals 55$

$3 x squared plus 7 equals 55$

MathematicsGrade-11

parallel

How is the function f(x) = x² translated to obtain the graph of g(x) = x² + 2 ?

How is the function f(x) = x² translated to obtain the graph of g(x) = x² + 2 ?

MathematicsGrade-11

Name the parent function of the function h(x) = (x - 2)² + 1.

Name the parent function of the function h(x) = (x - 2)² + 1.

MathematicsGrade-11

Find the solutions for: (x + 2)(x - 5) = 00

Find the solutions for: (x + 2)(x - 5) = 00

MathematicsGrade-11

parallel

Quadratic-Equations

Solve x² – 14x + 49 = 0.

Solve x² – 14x + 49 = 0.

MathematicsQuadratic-Equations

Quadratic-Equations

Find the axis of symmetry of $open parentheses x minus 1 half close parentheses squared equals y$

Find the axis of symmetry of $open parentheses x minus 1 half close parentheses squared equals y$

MathematicsQuadratic-Equations

Quadratic-Equations

Find the turning point of y = (x – 2)² + 5.

Find the turning point of y = (x – 2)² + 5.

MathematicsQuadratic-Equations

parallel

Quadratic-Equations

Solve x² + 6x = 5 through completing the square method.

Solve x² + 6x = 5 through completing the square method.

MathematicsQuadratic-Equations

Quadratic-Equations

The sun of n terms in the sequence 23, 19, 15, 11, ….. is given by the rule S = 25n – 2n². How many terms must we add to make a sum of 72?

The sun of n terms in the sequence 23, 19, 15, 11, ….. is given by the rule S = 25n – 2n². How many terms must we add to make a sum of 72?

MathematicsQuadratic-Equations

Quadratic-Equations

Number of solutions to the graph of quadratic function.

Number of solutions to the graph of quadratic function.

MathematicsQuadratic-Equations

parallel

card img

With Turito Academy.

card img

With Turito Foundation.

card img

Get an Expert Advice From Turito.

Turito Academy

card img

With Turito Academy.

Test Prep

card img

With Turito Foundation.